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1761results about How to "Improve mildew resistance" patented technology

Method for preparing stevia whole stevioside and stevia whole flavone at the same time

The invention discloses a preparing method of total sweet chrysanthemum glycosides and total chromocor in sweet leaf chrysanthemum, which is characterized by the following: comprising sweet chrysanthemum glycosides, stevi primary glycosides, labroid glycosides A, B, C, D, E, F, duacl glycosides A and so on in total sweet chrysanthemum glycosides; comprising cyanidenon, meletin, cyanidenon-7-0-beta-D glycosides, celery element-7-0-beta-D-glycosides, quercetin, meletin-3-0-beta-D-arabinoside, meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside] and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; extracting the total chromocor; setting content of sweet chrysanthemum glycosides element in total sweet chrysanthemum glycosides at 5-100%; counting 5-100% of all sweet chrysanthemum glycosides content with sweet chrysanthemum glycosides and labroid glycosides; counting 5-100% of chromocor element in sweet leaf chrysanthemum total chromocor; counting 5-100% of all total chromocor content with cyanidenon-7-0-beta-D glycosides, quercetin and meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside].
Owner:石任兵 +1

Environmentally-friendly mould-proofing wood-plastic composite material and preparation method thereof

ActiveCN103102591AImprove mildew resistanceImprove compatibility and interface affinityRevolutions per minuteCalcium carbonate
The invention discloses an environmentally-friendly mould-proofing wood-plastic composite material and a preparation method thereof. The preparation method comprises the following steps: mixing a plastic substrate, modified wood fiber powder, calcium carbonate, a lubricant, a light stabilizer, a toner and other components in parts by mass; adding the mixture to a high-speed mixer; uniformly stirring; mixing for 6 to 15 minutes at a high speed and at a temperature of 100-120 DEG C and a revolving speed of 700 to 100 revolutions per minute; cooling; discharging to obtain a premix; adding the premix to a parallel twin-screw machine to granulate and extrude, wherein the temperature is controlled to 150-185 DEG C, and screws are at a revolving speed of 280 to 320 revolutions per minute during granulating, the temperature is controlled to 155-190 DEG C, and the screws are at a revolving speed of 10 to 15 revolutions per minute during extruding; thus obtaining the environmentally-friendly mould-proofing wood-plastic composite material. The environmentally-friendly mould-proofing wood-plastic composite material is high in mould proofing performance and mechanical performance, and is environmentally-friendly.
Owner:GUANGDONG INST OF MICROBIOLOGY GUANGDONG DETECTION CENT OF MICROBIOLOGY

Antibacterial down feather and manufacturing method thereof

The invention relates to an antibacterial down feather and a manufacturing method thereof. The manufacturing method comprises the steps of raw material stem removal, dust and sand removal, precise separation, washing, dehydration, drying, cooling and package, wherein an antibacterial agent comprises the following components in portion by weight: 6 to 10 portions of quaternary ammonium salt A, 1 to 2 portions of modified chitosan, 0.2 to 0.5 portion of silane coupling agent, 0.1 to 0.5 portion of solubilizing agent, and 0.3 to 0.6 portion of dispersing agent. The antibacterial down feather can effectively prevent mildew and attack of insects of the down feather in storage, transportation and use, and particularly when the antibacterial down feather serves as a filling material and is manufactured into articles for daily use, because of the antibacterial and bacteriostatic functions, the corresponding products have obvious functions of resisting bacteria, diminishing inflammation, deodorizing, resisting mildew, relieving itching and converging, and have no stimulation to skins, and the antibacterial rate of the obtained down feather to staphylococcus aureus bacteria reaches up to 99 percent, and after 10 times of washing, the antibacterial rate still reaches 92 percent.
Owner:凌颖

Method for preparing novel environment-friendly wallpaper based on high-filling synthetic paper

The invention relates to a method for preparing a piece of novel environment-friendly wallpaper by a high-filling synthetic paper. The high-filling composite paper (also known as a replaceable plant fiber paper) is used as a base material, a coating material is coated on the base material to form a transparent coating, the coating material contains a water emulsion, a nano antibacterial, a pore-foaming agent, a flame retardant filler, an ink absorbing agent and the like, and a novel environment-friendly wallpaper with the waterproof, ventilating, mildewproof and flame retardant performances is manufactured by rotary screen, flat screen and gravure printing methods. Compared with the PVC (polyvinyl chloride) wallpaper, the novel environment-friendly wallpaper has the advantage that the coating and the printing are carried out at low temperature, the temperature is lower than 100 DEG C, and the temperature of the PVC wallpaper reaches to 220 DEG C during foaming and drying, so the energy-saving effect is favorably realized. Compared with the existing wallpaper, the novel environment-friendly wallpaper has the advantage that heavy metals, formaldehyde, plasticizers, VOC (volatile organic compounds) and the PVC are not contained, so the environment-friendly, ecological and health effects are realized.
Owner:宋旭

Environment-friendly antibacterial and mildew-proof wallpaper

The invention provides environment-friendly antibacterial and mildew-proof wallpaper. The environment-friendly antibacterial and mildew-proof wallpaper comprises a base layer, wherein the back face of the base layer is provided with a waterproof coating; a coating layer is arranged on the base layer; a bamboo charcoal fiber layer is arranged on the coating layer; an antibacterial layer is arranged on the bamboo charcoal fiber layer; a diatomite adsorption layer is arranged on the antibacterial layer; a printing embossing layer is arranged on the diatomite adsorption layer and is coated with a mildew resisting coating; a polytetrafluoroethylene layer is arranged on the mildew resisting coating and is provided with a film coating layer. The wallpaper is provided with the coating layer, the antibacterial layer and the bamboo charcoal fiber layer, and the triple effect enables the wallpaper to have a good antibacterial property; the coating layer and the mildew resisting coating are arranged so that the wallpaper is good in mildew resistance; furthermore, the diatomite adsorption layer is arranged so as to further enhance the deodorization capability of the wallpaper; finally, the wallpaper provided by the invention has good antibacterial, mildew-proof and deodorization performance.
Owner:苏州苏尔达包装科技有限公司

Epoxy resin based neutron and gamma ray shielding composite material, as well as preparation method and application thereof

The invention relates to an epoxy resin based neutron and gamma ray shielding composite material, as well as a preparation method and an application thereof, belonging to the technical field of shielding materials, used for solving the following technical problems that the shielding property of a shielding material in the prior art is difficultly combined with other physical and mechanical properties; requirements of application flexibility and construction diversity cannot be satisfied; and furthermore, the preparation process is complex. The epoxy resin based neutron and gamma ray shielding composite material is composed of the following components in parts by weight: 5-15 parts of epoxy resin, 2-9 parts of a curing agent, 1-10 parts of a fast neutron moderator, 2-20 parts of a thermal neutron absorber, 65-85 parts of a gamma ray shielding agent, 0-3 parts of an inert diluent, 0-3 parts of an active diluent, 0-2 parts of an accelerant, and 0.5-5 parts of auxiliaries. The epoxy resin based neutron and gamma ray shielding composite material has excellent neutron and gamma ray mixing-field shielding property; furthermore, the epoxy resin based neutron and gamma ray shielding composite material is low in toxicity, free from smell, simple in preparation process and convenient to construct; and thus, the epoxy resin based neutron and gamma ray shielding composite material can be widely applied in various fields of strict radiation-resistant requirements.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Mite and mosquito-bite preventing underwear, sleepwear and home wear

The invention relates to the technical field of fibers, in particular to a mite and mosquito-bite preventing underwear, sleepwear and home wear which is characterized by comprising the following processing steps of: preparing medical liquid; carrying out dyeing and printing and other pre-treatments on cottons or cotton blended fabrics; preparing bleaching and dyeing liquid; dyeing cloth; carrying out high temperature tentering; and processing so as to prepare the underwear, the sleepwear and the home wear. According to the invention, the fabrics provided by the invention have the obvious effects of mite preventing, mosquito preventing, anti-bacterium, deodorization, rot resistance, itching relieving, blood circulation invigoration and meridians activation and the like; the repellent rate of dust mite is as high as 99 percent; the repellent rate of mosquito is 95 percent; the repellent rate of termite is 95 percent; fabric-touching pathogens such as staphylococcus aureus, staphylococcus epidermidis, gonococcus and esherichia coli and the like can be completely killed; all efficacies of the fabrics still reach to over 97 percent after the fabrics are washed for 50 times; and the fabrics have the advantages of no irritation to skin, no anaphylactic reaction, no toxicity to the human body, comfort for wearing and can effectively prevent the infection of asthma and other diseases.
Owner:王建波

Over-pressure over-temperature environment-friendly silica gel composite pipe and preparation method thereof

The invention belongs to the technical field of silica gel pipes and preparation methods thereof, and discloses an over-pressure over-temperature environment-friendly silica gel composite pipe and a preparation method thereof. The over-pressure over-temperature environment-friendly silica gel composite pipe is mainly and technically characterized by comprising an inner rubber layer and an outer rubber layer which are made of silicon rubber, wherein a strengthening layer is arranged between the inner rubber layer and the outer rubber layer. The inner rubber layer 1 and the outer rubber layer 3 comprise the following materials in parts by weight: 100 parts of silicon rubber SR, 40-55 parts of fume colloidal silica, 0.4-1 part of vulcanizing agent double-25DBPMH, 1-5 parts of ferric oxide, 0-5 parts of colorant, 5-8 parts of environment-friendly tasteless adhesive AS-88 and 5-8 parts of inorganic flame retardant aluminium hydroxide or zinc borate. The silicon rubber composite pipe is prepared by adopting the following steps of: freezing an inner rubber tyre to harden, winding the strengthening layer and vulcanizing, thus, the pressure resistance and the high temperature resistance of the common silicon rubber pipe are improved, the service life of the common silicon rubber pipe is prolonged, and the abrasion resistance is improved.
Owner:河北东劲液压橡塑制品有限公司
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